Shire



(No Model.)

C. L. RIDGWAY.

HEATING sirov 0R PURNAGE.

. Patented Oct. 23, 18.88.

Wmme/eo N, PEYERS, Fhnw-Lizhngnpher. washington, D c.

Unirse Starts Farmer trice,

CHARLES L. RIDGVAY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE RIDGW'AY FURNACE AND STOVE COMPANY, OF NASHUA, NEV HAMP- SHIRE.

HETlNG STOVE OR FURNACE.

SPECIFICATION 'forming part of Letters Patent No. 391,27, dated October 23, 1888.

Application tiled March l, 1856. Serial No. 193.583. (No model.)

To all' whom, it may concern:

Be it known that I, CHARLES L. RIDGWAY, of Boston, in the county of Suffolk and State of Massachusetts,a citizen of the United States, have invented a new and usef'ul Improvement in Heating Stoves and Furnaces, of which the following is a full, clear, 'and exact description, reference being had tothe accompanying drawings, forming a part of this specification, in explaining its nature.

The invention is an improvement upon that which is described in United States Patent No. 281,795, which was issued to me July 2-1, 1883. In said patent I have described a basket or open lire-pot wall arranged within a chamber forming a downward extension tothe combustion-chamber and adapted to be revolved.

In the present invention the lire-pot wall, while of similar form to that described in said patent, in that it has vertical bars and vertical openings between the bars and is centrally arranged in a downward extension to the combustion-chamber,is not adapted to be revolved, and it' is suspended from the inner casing or wall of the furnace; and my present invention relates to the manner of suspending the firepot wall, and also to the construction of the same, all of which will hereinafter be fully explained.

Referring to the drawings, Figure l is a vertical central section of a portion of an airhcating furnace in which my improvements are embodied. Figs. 2 and 3 are details representing perspective views of fragments of the lire-pot wall.

A is the ash-pit.

B is the fire-pot; C, the combustiouchamber; D, the tire-pot wall; d, the chamber about the lire-pot, which is in communication with and constitutesapartof the comlnistion-chamber.

d' is the casing or shell which incloscs the combustionchamber, and forms, in connection with the trcpot wall and its upper and lower lateral exterior connections, the chamber d, already referred to, and d2 is the exterior or hot-air easin g of the furnace.

The firepot wall D comprises a series of sections, D, each of which is formed substantially as represented in Fig. 2, and any suitable number of sections are employed. Each section or segment has an upper horizontal curved bar or rim, dt, alower horizontal curved bar or rim, d5, and intermediate vertical connectingbars, da. Each of these sections has also an exterior stud, pin, or arm, d, which projects horizontally outward from a point preferably near the center of the upperhorizontal member, cF, of the section. These sections D of the lire-pot wall are secured together by means of an annular plate, E, a downwardlyextending flange, e, of which projects inside the upper extremity of the assembled sections of such wall, as represented in Fig. l, and also in Figs. 2 and 3, taken together. The securingplate E is provided also with exterior downwardly extending projections or hooks, ci, which upon slight rotation of the plate engage beneath the studs or arms d upon the part d4, thus securely connecting the several sections or segments to the annular plate.

The lower bars or members, d5, of the sec tions D extend into a recess, c3, which is provided in the upper and inner portion of a horizontal plate, F, and they are confined within this recess by a sleeve or ring, G, which upon its upper extremity is provided with an exterior shoulder, g, which bears upon a corresponding inwardly-projecting ledge or shoulder of the member d, or which extends into a recess or groove, dl, formed in such member. This covering-ring or securing-sleeve G, preferably slightly tapered from top to bottom, as represented, extends downward to a point near the upper surface of the grate H.

For the suspension of the tire-pot wall the plate E is provided with exterior arms, E', which are received in suitable lugs orreccssed brackets, E2, which are secured to the wall of the co mbustion-chamber. The composite lirepot wall thus constructed may, as is obvious, be readily lifted from its supporting-brackets and the plate E detached, for the replacement of any of the sections which may have become imperfect through breakage or wear or for nesting the sections for transportation.

' The sectional or composite tire -pot wall herein described is similar in some respects to that shown in an application serially numbered 194,939, filed by me in the United States Patroc Y ent Office on the 12th day of March, i886; but it differs from that, in that the securing-ring is provided with projections, which are lacking in that construction, for the suspension of A the tire-pot from the wall of the combustionchamber, and in that it does not rest upon and revolve with the revoluble plate.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United Stater- 1. A tire-pot wall which is composed of several Vertical sections, each of which embraces a series of vertical bars which are separated by intermediate spaces, and which are connected by horizontal top and bottom bars or rims, as set forth.

2. A tire-pot wall which is composed of a series ofindependent verticalsections, D', each having vertical bars and intermediate vertical openings, in combination with top and bottom one-part devices for securing such sections rigidly together.

3. The combination of the sections D of the lire-pot wall with the plate E, having the downward interior projecting flange e and the outer inelosing or holding projections, e2, all substantially as described.

4. The combination of the sections D of the fire-pot wall, having the pins d, with the plate E, having the flange e and the hooks e, substantiall y as described.

5. The combination of the sections D' of the tire-pot wall, having the pins d, with theplate E, the' ange e, the hooks e2, and arms or brackets for attaching the plate to the casing of the furnace, substantially as described.

6. The combination of the sections D of the fire-pot wall with the plate F, having the recess e", and the cylindriealsection orsleeve G, all substantially as described.

7. In a heating stove or furnace, a re-pot wall which has vertical bars which alternate with vertical spaces, and which is suspended by its upper edge within a chamber which constitutes a portion of the combustion-chamber, substantially as shown and described.

8. In a heating stove or furnace, a lire-pot wall which embraces a series of vertically-arranged vertically-barred sections, and a top engaging-plate which interlocks with each of the vertical sections, and which is provided with exterior arms, whereby the entire i'ircpot wall is suspended at its upper extremity upon the wall of the combustion-chamber, as and for the purposes set forth.

CHARLES L. RIDGWAY.

Vitnesses:

F. F. RAYMOND, 2d, J. M. DOLAN. 

